If you need to get 3-4 hours of moderate exercise, perhaps you dont have to quit your job...just get one of these.
It's a Treadmill Desk, and according to studies you can burn 100 extra calories per hour versus just sitting at your desk. If you work an 8-hour day, that could add up to 800 calories!
Interested? Just pony over $6,000 to Steelcase and you too can be the proud owner of this wonderful product ;)